Gas Exchange

Alveoli have a...

• ...large surface area to allow diffusion to take place over a greater space.

• ...small surface area to allow diffusion to take place over a greater space.

• ...large surface area to allow osmosis to take place over a greater space.

• ...small surface area to allow osmosis to take place over a greater space.

Tags

NGSS.MS-LS1-2

Alveoli have a good blood supply to maintain the concentration gradients of oxygen and carbon dioxide.

• True

• False

Alveoli have a...

• ...moist lining for dissolving gases

• ...dry lining for dissolving gases

• ...moist lining for dissolving glucose

• ...dry lining for dissolving glucose

Alveoli have very thick walls to maximise the distance that gases have to move.

• True

• False

Select the correct option(s) to describe gaseous exchange in the alveoli.

• Oxygen diffuses into the blood.

• Carbon dioxide diffuses out of the blood.

• Oxygen diffuses out of the blood.

• Carbon dioxide diffuses into the blood.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

What are the main organs of gas exchange in the respiratory system?

• diapragm
• lungs
• trachea
• bronchi

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

The two main branches from the trachea (one to each lung)

• bronchi
• alveoli
• capillaries
• bronchioles

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.MS-LS2-3

What is tube that is also known as your wind pipe?

• esophogus
• bronchi
• trachea
• alveoli